Dehydroepiandrosterone sulfate sodium dihydrate-d6 sodium dihydrate is the deuterium labeled Dehydroepiandrosterone sulfate sodium dihydrate. Dehydroepiandrosterone sulfate (DHEA sulfate, Prasterone sulfate) sodium dihydrate is a neurosteroid and the main secretion product of the adrenal gland. Dehydroepiandrosterone sulfate sodium dihydrate has both non-competitive antagonist activity of GABAA receptor and agonist activity of sigma1 receptor. Dehydroepiandrosterone sulfate sodium dihydrate can partially penetrate the blood-brain barrier, inhibit GABAA receptor-mediated chloride influx, enhance NMDA receptor activity through sigma1 receptors, exert anti-inflammatory, anti-glucocorticoid and antidepressant effects, and increase convulsive sensitivity. Dehydroepiandrosterone sulfate sodium dihydrate participates in neuroprotection, neurite growth regulation and catecholamine secretion regulation, and can be used in the study of depression, post-traumatic stress disorder (PTSD), Alzheimers disease, etc. Dehydroepiandrosterone sulfate sodium dihydrate may also be a biomarker for cardiovascular disease mortality, and its concentration is independently and negatively correlated with mortality[1][2][3][4][5].